Hydrocarbon-burner.



1. FOERST.

' HYDROCARBON BURNER. ,APPLICATION FILED MAR. 6.1918. 1 ,27 9,31 5. Patentedsept. 17,19111 w R ma M0 V WI,

A TTOBNE Y lis JOHN' FOERST, 0F BAYONNE, JERSEY.`

HvDnocanBoN-B'Unnn Tolall whom t may concern: v

Be it known that l, JoHN loERsT, a citizen of the United States, residing at Bayonne, in the county of Hudson. and State of New Jersey, have invented certain new and useful improvements in Hydrocarbon- Burners, of which the following is a'speciication, reference being had therein to the accompanying drawings. l j

This l'invention relatesto an improvement in hydrocarbon burners and has-for an object 'to provide a simple but ecient burner constructed to guard against leakage and to prevent back-ring in connection with its use with a variety of apparatuses for heating or smelting purposes.

The invention has for a further object to provide the burner with readilyreplaceable means for controlling the stream issuing therefrom to accord with the type of heating apparatus employed.

@ther objects of the invention will be apparentv from the following description and claims. V

In itspreferred embodiment,` .thejpresent improvement comprises' an external injectorbarrel, provided with an ingress-port, and.

terminating at one end in aI tapered nozzle, the opposite end thereof being formed into a bearing boss of which one end is directed inwardly within the injector-barrel. Threaded into the bearing boss is a tube projecting within and tapering toward the nozzlev end of the injector-barrel. The tube is formed with a ange adapted to ft snugly againstthe bearing boss and is also provided with an ingress port. Adjacent its outer end the tube is internally threaded to receive a second tube having its tapered mouthprojecting toward the nozzle end of the injector, which is internally threaded to receive a stream-controlling bushing having an opening in'alinement with the interior of the injector-barrel. The bushing may be readily replaced by another with a different style 'of opening to correspond with the type of heating apparatus employed.

ln the accompanying drawings, Figure 1 is a longitudinal sectional view of the burner. Fig. 2 is a transverse sectional view of the burner on the line -m, Fig. 1. Figs. 3, 4,

and 5 are views of modifications illustrative of the bushings which may be applied to the b'urner and the form of openings which may be employed. A V.

. Referring to the drawings, the burner specification of Letters Patent.

,at itsouterend is formed `6 of a shape requisite to the resultldesired.

reception ofa bushing 3 'provided with av ange 4, which contacts with the end of the nozzle, serving as a stop and to effect a tight Vjolnt between the bushing and the nozzle.

rlhe inner surface 5 of the bushing merges in a gradual curve into the "inner surface of.

the injector-barrel to provide a smooth survface obviating the .gathering of carbon and into an opening The. injector-'barrel 1 is formed with a laterally projecting interiorly threaded 'ingress' port 7 and with an elongated. aperturedv boss 8 projecting within the barrel to a point Patente sept. at, rais. l application ned march s, 191e. serial no. 220,672.-

slightly beyond the ingress port 7. rlhis construction provides only a narrow open-ing between the 'lower edge of the ingress port 7 andthe outer surface of the boss, thereby eliminating back-tiring even under low pressures ofthe steam or air employed'for prof ducing suction and atomization of the fuel. rIhreaded within the apertured boss 8 and supported thereby is a tube 9, tapering at its forward end into? a nozzle 10 projecting within the opening inthe bushing 3, the position of the tube being determined by a peripheral flange 11 Contactin with the rear end of the boss 8. It will e seen that the substantial area of thel boss, the threads intermediate-,itand the tube, andthe provi- Sion of a vdangeon the latter to abut the boss at the outer end of the threads, in conjunction, aord a sealed connection between the injector-barrel and the tube, thereby preventing leakage and rendering the use of paeking'nnneces'sary. rlhe tube 9 also is provided with a laterally projecting ingress-port 12 and to the rear of said port 1s interiorlythreaded to v rearward surface of the tube 9.

In the ,operation of the device as described the three ingress-ports vmay be used for different purposes at di'erent times.-

For instance, steam or air may be led under pressure through the ingress-port 7, under.

the inuence of which air will be drawn 13, etc.

-ing with the interior of 4the injector-barrel.

ythrough the port 12 to aerate ticular e'ect desired,

for combustion purposes, oil discharged through the tube 13. As the mixture passes through the bushing 3 the oil is atomized and ignited in the usual manner. Further,'oil may be led through the port 7 andair drawn into .the port 12 under` the suction of steam or air passed under pressure through the tube The port to be used for a certain purpose is of course determined by the parit being understood tha gas may be substituted for the oil as For general purposes a bushing having a narrow circular opening as shown in Fig. 1'

is desirable. For smelting or the like purposes when it is desired to utilize a flat heavy stream issuing from the injector, it.

is desirable to use a bushing having an opening 17 as illustrated in the modification shown in Fig. l of the drawings. is desired to have a fine spray, the nozzle 10 may be formed with peripheralnotches as 18, illustratedin the modification shown in Fig. 5 of the drawings and communicatln the` latter construction the inner diameter of the bushing corresponds substantially with the outer diameter of the nozzle 1 0.

When it is desired to use gas as a fuel .for smelting purposes, the bushing is prei:- erably employed, although for regular gas burning, it may be omitted from the modification illustrated in Fig. 4 of the drawings. l Having thus vset orth the nature of the invention, what l claim herein is 1. ln a burner, an injector-barrel formed at one end with a nozzle and at its opposite end with an internally projecting apertured boss Jformed integral therewith and with an ingress-port overlying said boss, a tube sustained by said boss and formed with a lateral ingress-port and a nozzle projecting Within the nozzle of the injector-barrel, and a second tube sustained by and formed with a nozzle projecting within said first mentioned tube.

2. ln a burner, aninjector-barrel formed at one end with anozzle and at its opposite end with an internally projecting apertured When it Aoverlying said boss,

boss formed integral therewith andl with an ingress-port overlying said boss', a tube sustained by said boss and formed with a nozzle opening in said bushing, and a second tube formed with a nozzle projecting within said first-mentioned tube.

4. 'ln a burner, an injectorbarrel formed at one end with a nozzle and at its opposite end with an elongated internally-projecting apertured boss and with an ingress-port a tube fitted'within said boss and provided with a nozzle projecting within the nozzle ot vthe injector-barrel, an

'ingress-port for said tube, a peripheral flange upon said tube in contact with the rear end of said boss, and a second tube sustained by and projecting within said firstmentioned tube. f

5. lin a burner, in combination an injectorbarrel formed at one end with a nozzle and at its opposite end with an internally-projecting apertured boss and with'an ingressort overlying said boss, the inwardly projecting end of said boss terminating beyond said ingress-port, a tube sustained by said boss and provided with a nozzle projecting within the nozzle of said injector-barrel, a lateral ingress-port for said tube independent of said boss, a flanged bushing fitted toA said injector-barrel nozzle and spaced from the nozzle of said tube, and a second tube sustained by and projecting within said first-mentioned tube.

In testimony whereof, l have signed my name to this specification.

JHN FOERST.

into the inner surface of said noz- 

